Chemistry, 09.06.2021 19:10 andrearamos12oxdie5
The pressure on 150 mL of a gas is increased from 500 mm Hg to 700 mm Hg at constant temperature. What is the new volume of the gas?
A. 107 ml
B. 210 mL
C. 350 ml
D. 2333 mL
Answers: 2
Chemistry, 22.06.2019 03:40, allyyzz
Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)
Answers: 3
Chemistry, 23.06.2019 07:30, mazielynn84
If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes or no?
Answers: 1
The pressure on 150 mL of a gas is increased from 500 mm Hg to 700 mm Hg at constant temperature. Wh...
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